Trigeminal System - Neuroanatomy and Clinical Correlations

Explore the intricate details of the trigeminal system in this comprehensive neuroanatomy lecture. Delve into the structure and function of the trigeminal ganglion, examining its three sensory divisions: ophthalmic (V1), maxillary (V2), and mandibular (V3). Learn about the entry points of these divisions into the cranial cavity and their areas of innervation. Discover the trigeminal nuclei in the brain, including the mesencephalic, principal pontine sensory, and spinal nuclei. Understand the path of sensory fibers through these nuclei and their eventual termination in the ventral-posteromedial nucleus of the thalamus. Examine the motor supply provided by the trigeminal system, including the muscles of mastication and other specific muscles. Gain insights into the unique myelination of the trigeminal sensory root and its clinical relevance in diseases like multiple sclerosis. This in-depth exploration of the trigeminal system provides essential knowledge for understanding facial sensory and motor functions in neuroanatomy.